7.8 - cisco-sa-20120328-smartinstall

Cisco IOS Software contains a vulnerability in the Smart Install feature that could allow an unauthenticated, remote attacker to cause a reload of an affected device if the Smart Install feature is enabled. The vulnerability is triggered when an affected device processes a malformed Smart Install message on TCP port 4786.

Cisco has released free software updates that address this vulnerability. There are no workarounds to mitigate this vulnerability.

This advisory is available at the following link:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-smartinstall

Note: The March 28, 2012, Cisco IOS Software Security Advisory bundled publication includes nine Cisco Security Advisories. Each advisory lists the Cisco IOS Software releases that correct the vulnerability or vulnerabilities detailed in the advisory as well as the Cisco IOS Software releases that correct all vulnerabilities in the March 2012 bundled publication.

Individual publication links are in "Cisco Event Response: Semi-Annual Cisco IOS Software Security Advisory Bundled Publication" at the following link:

http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar12.html

Affected Products

Vulnerable Products

Devices configured as a Smart Install client or director are affected by this vulnerability. To display Smart Install information, use the show vstack config privileged EXEC command on the Smart Install director or client. The outputs of show commands are different when entered on the director or on the client. The following is the output of show vstack config in a Cisco Catalyst Switch configured as a Smart Install client:

switch#show vstack config Role: Client Vstack Director IP address: 10.1.1.163

The following is the output of show vstack config in a Cisco Catalyst Switch configured as a Smart Install director:

Director# show vstack config Role: Director Vstack Director IP address: 10.1.1.163 Vstack Mode: Basic Vstack default management vlan: 1 Vstack management Vlans: none Vstack Config file: tftp://10.1.1.100/default-config.txt Vstack Image file: tftp://10.1.1.100/c3750e-universalk9-tar.122- Join Window Details: Window: Open (default) Operation Mode: auto (default) Vstack Backup Details: Mode: On (default) Repository: flash:/vstack (default)

The Smart Install Feature is enabled by default.

To determine the Cisco IOS Software release that is running on a Cisco product, administrators can log in to the device and issue the show version command to display the system banner. The system banner confirms that the device is running Cisco IOS Software by displaying text similar to "Cisco Internetwork Operating System Software" or "Cisco IOS Software." The image name displays in parentheses, followed by "Version" and the Cisco IOS Software release name. Other Cisco devices do not have the show version command or may provide different output.

The following example identifies a Cisco product that is running Cisco IOS Software Release 15.0(1)M1 with an installed image name of C3900-UNIVERSALK9-M:

Router> show version Cisco IOS Software, C3900 Software (C3900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2009 by Cisco Systems, Inc. Compiled Wed 02-Dec-09 17:17 by prod_rel_team ! output truncated

Additional information about Cisco IOS Software release naming conventions is available in "White Paper: Cisco IOS and NX-OS Software Reference Guide" at: http://www.cisco.com/web/about/security/intelligence/ios-ref.html

Products Confirmed Not Vulnerable --

Cisco IOS XR Software is not affected by this vulnerability.

Cisco IOS XE Software is not affected by this vulnerability.

No other Cisco products are currently known to be affected by this vulnerability.

Details

Smart Install is a plug-and-play configuration and image-management feature that provides zero-touch deployment for new LAN Ethernet switches. This feature allows, for example, new LAN switches to be deployed at new locations without any configuration.

A vulnerability exists in the Smart Install feature of Cisco IOS Software that could allow an unauthenticated, remote attacker to cause a reload of an affected device. Smart Install uses a Cisco proprietary protocol that runs over TCP port 4786. To exploit this vulnerability, an attacker needs to establish a TCP session on port 4786 of an affected device that has the Smart Install feature enabled, and then send a malformed Smart Install message.

This vulnerability is documented in Cisco bug ID CSCtt16051 and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2012-0385.

Vulnerability Scoring Details

Cisco has scored the vulnerability in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this security advisory is in accordance with CVSS version 2.0.

CVSS is a standards-based scoring method that conveys vulnerability severity and helps organizations determine the urgency and priority of a response.

Cisco has provided a base and temporal score. Customers can also compute environmental scores that help determine the impact of the vulnerability in their own networks.

Cisco has provided additional information regarding CVSS at the following link:

http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html

Cisco has also provided a CVSS calculator to compute the environmental impact for individual networks at the following link:

http://intellishield.cisco.com/security/alertmanager/cvss

* Cisco IOS Software Smart Install Denial of Service Vulnerability

CVSS Base Score - 7.8 Access Vector - Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete

CVSS Temporal Score - 6.4 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed

Impact

Successful exploitation of the vulnerability that is described in this advisory may cause a reload of an affected device. Repeated exploitation could result in a sustained denial of service condition.

Software Versions and Fixes

When considering software upgrades, also consult: http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution.

In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance.

Cisco IOS Software

Each row of the following Cisco IOS Software table corresponds to a Cisco IOS Software train. If a particular train is vulnerable, the earliest releases that contain the fix are listed in the First Fixed Release column. The First Fixed Release for All Advisories in the March 2012 Bundled Publication column lists the earliest possible releases that correct all the published vulnerabilities in the Cisco IOS Software Security Advisory bundled publication. Cisco recommends upgrading to the latest available release, where possible.

The Cisco IOS Software Checker allows customers to search for Cisco Security Advisories that address specific Cisco IOS Software releases. This tool is available on the Cisco Security Intelligence Operations (SIO) portal at: http://tools.cisco.com/security/center/selectIOSVersion.x

+| Major | Availability of Repaired Releases | | Release | | || | Affected | | First Fixed Release for All | |12.0-Based| First Fixed Release |Advisories in the March 2012 Cisco| | Releases | | IOS Software Security Advisory | | | | Bundled Publication | || | There are no affected 12.0 based releases | || | Affected | | First Fixed Release for All | |12.2-Based| First Fixed Release |Advisories in the March 2012 Cisco| | Releases | | IOS Software Security Advisory | | | | Bundled Publication | |-| |12.2 |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2B |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2BC |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2BW |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2BX |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SB | |-| |12.2BY |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2BZ |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2CX |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2CY |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2CZ |Not vulnerable |Vulnerable; First fixed in Release| | | |12.0S | |-| |12.2DA |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2DD |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2DX |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| | | |Vulnerable; contact your support | |12.2EU |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2EW |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2EWA |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | |Vulnerable; First | | | |fixed in Release | | |12.2EX |15.0SE |Vulnerable; First fixed in Release| | |Releases up to and |15.0SE | | |including 12.2(46)EX | | | |are not vulnerable. | | |-| | |Vulnerable; migrate | | | |to any release in | | |12.2EY |15.1EY |12.2(52)EY4 | | |Releases up to and | | | |including 12.2(52)EY4| | | |are not vulnerable. | | |-| | |Vulnerable; First | | | |fixed in Release | | |12.2EZ |15.0SE |Vulnerable; First fixed in Release| | |Releases up to and |15.0SE | | |including 12.2(53)EZ | | | |are not vulnerable. | | |-| |12.2FX |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0SE | |-| |12.2FY |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0SE | |-| |12.2FZ |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0SE | |-| |12.2IRA |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| |12.2IRB |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| |12.2IRC |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| |12.2IRD |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| |12.2IRE |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| |12.2IRF |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| | | |Vulnerable; contact your support | |12.2IRG |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2IRH |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2IXA |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2IXB |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2IXC |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2IXD |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2IXE |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2IXF |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2IXG |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2IXH |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| |12.2JA |Not vulnerable |Not vulnerable | |-| |12.2JK |Not vulnerable |Not vulnerable | |-| |12.2MB |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2MC |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2MRA |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| | | |Vulnerable; contact your support | |12.2MRB |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Releases prior to 12.2(30)S are | |12.2S |Not vulnerable |vulnerable; Releases 12.2(30)S and| | | |later are not vulnerable. First | | | |fixed in Release 12.0S | |-| |12.2SB |Not vulnerable |12.2(33)SB12 | |-| |12.2SBC |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| |12.2SCA |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SCE | |-| |12.2SCB |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SCE | |-| |12.2SCC |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SCE | |-| |12.2SCD |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SCE | |-| |12.2SCE |Not vulnerable |12.2(33)SCE6 | |-| |12.2SCF |Not vulnerable |12.2(33)SCF2 | |-| |12.2SE |12.2(55)SE5 | | | | |12.2(55)SE5 * | |-| |12.2SEA |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0SE | |-| |12.2SEB |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0SE | |-| |12.2SEC |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0SE | |-| |12.2SED |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0SE | |-| |12.2SEE |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0SE | |-| |12.2SEF |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0SE | |-| |12.2SEG |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0SE | |-| |12.2SG |Not vulnerable |12.2(53)SG7; Available on | | | |07-MAY-12 | |-| | | |Vulnerable; contact your support | |12.2SGA |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| |12.2SL |Not vulnerable |Not vulnerable | |-| | | |Vulnerable; contact your support | |12.2SM |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2SO |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2SQ |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| |12.2SRA |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| |12.2SRB |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| |12.2SRC |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| |12.2SRD |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| |12.2SRE |Not vulnerable |12.2(33)SRE6 | |-| | | |Vulnerable; contact your support | |12.2STE |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| |12.2SU |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2SV |Not vulnerable |Releases up to and including 12.2 | | | |(18)SV2 are not vulnerable. | |-| | | |Vulnerable; contact your support | |12.2SVA |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2SVC |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2SVD |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2SVE |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| |12.2SW |Not vulnerable |Vulnerable; First fixed in Release| | | |12.4T | |-| | | |Vulnerable; contact your support | |12.2SX |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2SXA |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2SXB |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2SXD |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2SXE |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2SXF |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2SXH |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| |12.2SXI |Not vulnerable |12.2(33)SXI9 | |-| |12.2SXJ |Not vulnerable |12.2(33)SXJ2 | |-| |12.2SY |Not vulnerable |12.2(50)SY2; Available on | | | |11-JUN-12 | |-| |12.2SZ |Not vulnerable |Vulnerable; First fixed in Release| | | |12.0S | |-| |12.2T |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| | | |Vulnerable; contact your support | |12.2TPC |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| |12.2XA |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XB |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XC |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XD |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XE |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XF |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XG |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XH |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XI |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XJ |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XK |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XL |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XM |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| | |Please see Cisco |Please see Cisco IOS-XE Software | |12.2XNA |IOS-XE Software |Availability | | |Availability | | |-| | |Please see Cisco |Please see Cisco IOS-XE Software | |12.2XNB |IOS-XE Software |Availability | | |Availability | | |-| | |Please see Cisco |Please see Cisco IOS-XE Software | |12.2XNC |IOS-XE Software |Availability | | |Availability | | |-| | |Please see Cisco |Please see Cisco IOS-XE Software | |12.2XND |IOS-XE Software |Availability | | |Availability | | |-| | |Please see Cisco |Please see Cisco IOS-XE Software | |12.2XNE |IOS-XE Software |Availability | | |Availability | | |-| | |Please see Cisco |Please see Cisco IOS-XE Software | |12.2XNF |IOS-XE Software |Availability | | |Availability | | |-| | | |Vulnerable; contact your support | |12.2XO |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| |12.2XQ |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| | | |Releases prior to 12.2(15)XR are | |12.2XR |Not vulnerable |vulnerable; Releases 12.2(15)XR | | | |and later are not vulnerable. | | | |First fixed in Release 15.0M | |-| |12.2XS |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XT |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XU |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XV |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2XW |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2YA |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| | | |Vulnerable; contact your support | |12.2YC |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2YD |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2YE |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2YK |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2YO |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; First fixed in Release| |12.2YP |Not vulnerable |15.0M | | | |Releases up to and including 12.2 | | | |(8)YP are not vulnerable. | |-| | | |Vulnerable; contact your support | |12.2YT |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2YW |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2YX |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2YY |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2YZ |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2ZA |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2ZB |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2ZC |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2ZD |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| |12.2ZE |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| |12.2ZH |Not vulnerable |Vulnerable; First fixed in Release| | | |15.0M | |-| | | |Vulnerable; contact your support | |12.2ZJ |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2ZP |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2ZU |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| |12.2ZX |Not vulnerable |Vulnerable; First fixed in Release| | | |12.2SRE | |-| | | |Vulnerable; contact your support | |12.2ZY |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |12.2ZYA |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | Affected | | First Fixed Release for All | |12.3-Based| First Fixed Release |Advisories in the March 2012 Cisco| | Releases | | IOS Software Security Advisory | | | | Bundled Publication | || | There are no affected 12.3 based releases | || | Affected | | First Fixed Release for All | |12.4-Based| First Fixed Release |Advisories in the March 2012 Cisco| | Releases | | IOS Software Security Advisory | | | | Bundled Publication | || | There are no affected 12.4 based releases | || | Affected | | First Fixed Release for All | |15.0-Based| First Fixed Release |Advisories in the March 2012 Cisco| | Releases | | IOS Software Security Advisory | | | | Bundled Publication | |-| |15.0M |Not vulnerable |15.0(1)M8 | |-| | | |Vulnerable; contact your support | |15.0MR |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | | |Vulnerable; contact your support | |15.0MRA |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | |Not vulnerable | | | |Cisco IOS XE devices:|15.0(1)S5 | |15.0S |Please see Cisco IOS |Cisco IOS XE devices: Please see | | |XE Software |Cisco IOS XE Software Availability| | |Availability | | |-| |15.0SA |Not vulnerable |Not vulnerable | |-| |15.0SE |15.0(1)SE1 |15.0(1)SE1 | |-| | |Not vulnerable | | | |Cisco IOS XE devices:|15.0(2)SG2 | |15.0SG |Please see Cisco IOS |Cisco IOS XE devices: Please see | | |XE Software |Cisco IOS XE Software Availability| | |Availability | | |-| |15.0SY |Not vulnerable |15.0(1)SY1 | |-| |15.0XA |Not vulnerable |Vulnerable; First fixed in Release| | | |15.1T | |-| | |Cisco IOS XE devices:| | |15.0XO |Please see Cisco |Cisco IOS XE devices: Please see | | |IOS-XE Software |Cisco IOS-XE Software Availability| | |Availability | | |-| | Affected | | First Fixed Release for All | |15.1-Based| First Fixed Release |Advisories in the March 2012 Cisco| | Releases | | IOS Software Security Advisory | | | | Bundled Publication | |-| |15.1EY |Not vulnerable |15.1(2)EY2 | |-| |15.1GC |Not vulnerable |15.1(2)GC2 | |-| |15.1M |15.1(4)M4; Available |15.1(4)M4; Available on 30-MAR-12 | | |on 30-MAR-12 | | |-| | | |Vulnerable; contact your support | |15.1MR |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| | |Not vulnerable | | | |Cisco IOS XE devices:|15.1(3)S2 | |15.1S |Please see Cisco IOS |Cisco IOS XE devices: Please see | | |XE Software |Cisco IOS XE Software Availability| | |Availability | | |-| | |Not vulnerable | | | |Cisco IOS XE devices:|Not vulnerable | |15.1SG |Please see Cisco IOS |Cisco IOS XE devices: Please see | | |XE Software |Cisco IOS XE Software Availability| | |Availability | | |-| | | |Vulnerable; contact your support | |15.1SNG |Not vulnerable |organization per the instructions | | | |in Obtaining Fixed Software | | | |section of this advisory. | |-| |15.1SNH |Not vulnerable |Not vulnerable | |-| |15.1T |15.1(3)T3 |15.1(3)T3 | |-| |15.1XB |Not vulnerable |Vulnerable; First fixed in Release| | | |15.1T | |-| | Affected | | First Fixed Release for All | |15.2-Based| First Fixed Release |Advisories in the March 2012 Cisco| | Releases | | IOS Software Security Advisory | | | | Bundled Publication | |-| |15.2GC |15.2(1)GC2 |15.2(1)GC2 | |-| | |Not vulnerable |15.2(1)S1 | | |Cisco IOS XE devices:| | |15.2S |Please see Cisco IOS |Cisco IOS XE devices: Please see | | |XE Software |Cisco IOS XE Software Availability| | |Availability | | |-| | |15.2(1)T2 |15.2(1)T2 | |15.2T |15.2(2)T1 |15.2(2)T1 | | |15.2(3)T; Available |15.2(3)T; Available on 30-MAR-12 | | |on 30-MAR-12 | |

+* Cisco Catalyst 3550 Series Switches support the Internet Key Exchange (IKE) feature and are vulnerable to Cisco bug ID CSCts38429 when the devices are running Layer 3 images; however, this product reached the End of Software Maintenance milestone. Cisco 3550 Series SMI Switches that are running Layer 2 images do not support IKE and are not vulnerable. No other Cisco devices that run 12.2SE-based software are vulnerable.

Cisco IOS XE Software

Cisco IOS XE Software is not affected by the vulnerability disclosed in this advisory.

Cisco IOS XR Software

Cisco IOS XR Software is not affected by any of the vulnerabilities disclosed in the March 2012 Cisco IOS Software Security Advisory Bundled Publication.

Workarounds =

There are no workarounds available to mitigate this vulnerability other than disabling the Smart Install feature. To disable the Smart Install feature use the global configuration command no vstack.

Additional mitigations that can be deployed on Cisco devices within the network are available in the Cisco Applied Mitigation Bulletin companion document for this advisory, which is available at the following link: http://tools.cisco.com/security/center/content/CiscoAppliedMitigationBulletin/cisco-amb-20120328-smartinstall

Obtaining Fixed Software

Cisco has released free software updates that address the vulnerability described in this advisory. Prior to deploying software, customers are advised to consult their maintenance providers or check the software for feature set compatibility and known issues that are specific to their environments.

Customers may only install and expect support for feature sets they have purchased. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license at: http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html or as set forth at http://www.cisco.com/public/sw-center/sw-usingswc.shtml

Do not contact psirt@cisco.com or security-alert@cisco.com for software upgrades.

Customers with Service Contracts -

Customers with contracts should obtain upgraded software through their regular update channels. For most customers, upgrades should be obtained through the Software Center on Cisco.com at: http://www.cisco.com

Customers Using Third-Party Support Organizations

Customers with Cisco products that are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers, should contact that organization for assistance with the appropriate course of action.

The effectiveness of any workaround or fix depends on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Because of the variety of affected products and releases, customers should consult their service providers or support organizations to ensure that any applied workaround or fix is the most appropriate in the intended network before it is deployed.

Customers Without Service Contracts

Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC):

* +1 800 553 2447 (toll free from within North America) * +1 408 526 7209 (toll call from anywhere in the world)
* e-mail: tac@cisco.com

Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade. Customers without service contracts should request free upgrades through the TAC.

Refer to Cisco Worldwide Contacts at: http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, instructions, and e-mail addresses for support in various languages.

Exploitation and Public Announcements

The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

This issue was reported to Cisco by customers who discovered it during the course of security audits.

Status of This Notice: Final

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors.

Distribution ==

This advisory is posted on Cisco Security Intelligence Operations at the following link

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-smartinstall

Additionally, a text version of this advisory is clear signed with the Cisco PSIRT PGP key and circulated among the following e-mail addresses:

* cust-security-announce@cisco.com
* first-bulletins@lists.first.org
* bugtraq@securityfocus.com
* vulnwatch@vulnwatch.org
* cisco@spot.colorado.edu
* cisco-nsp@puck.nether.net
* full-disclosure@lists.grok.org.uk

Future updates of this advisory, if any, will reside on Cisco.com but may not be announced on mailing lists. Users can monitor this advisory's URL for any updates.

Revision History

+| Revision | | Initial | | 1.0 | 2012-March-28 | public | | | | release. |

+Cisco Security Procedures

Complete information about reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco is available on Cisco.com at: http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html

This web page includes instructions for press inquiries regarding Cisco Security Advisories.

All Cisco Security Advisories are available at: http://www.cisco.com/go/psirt

Copyright 2010-2012 Cisco Systems, Inc. All rights reserved.

BEGIN PGP SIGNATURE Version: GnuPG v1.4.5 (SunOS)

iFcDBQFPcSThQXnnBKKRMNARCOH4AP9Wgc8t/hVLf4NZrWSE6Y64edlgu+lg7MB6 h5OtNEQTgAD/Ux8fxWyhS8HGYK17bT294K2OMuymiytT5sN/T2u/ZY8= =6eFE END PGP SIGNATURE _______________________________________________ cust-security-announce mailing list cust-security-announce@cisco.com To unsubscribe, send the command "unsubscribe" in the subject of your message to cust-security-announce-leave@cisco.com